It is exactly for anti-piracy system against TTS(text to speech) that has caused this.
This is how it looks it looks to TTS or google translate:
so in an attempt to stop users from using TTS they not only bricked translation from being used but also encouraged users to literally copy the content of chapters, just so that users can read it.
I can understand the need for copyright protection but there is a point where the return on implementation will actually be detrimental to a website instead of beneficial.
[deleted]2 Apr
also Per forugra4 hours ago, in a different bug report still related to google translate.:
It's stupid anti-piracy system. Here a way you can try to avoid any sort of their strange systems:
1) Make a long screenshot of all chapter. My browser has build-in function for it. Just google screenshot with scroll,
2) Leave only wanted text in this screenshot.
3) OCR it. Just google "OCR online".
4) Get text from previous move and put it in translator.
Till you see text you will can translate it. It's work averywhere also.